docs(blog): add post for PodOS 2025.12 release

doc: Blogpost about PodOS 2025.11

release: @pod-os/elements:0.31.0, @pod-os/core:0.20.0

doc: move changes to the correct release version

release: bump versions to fix login issues

- elements: 0.25.2
- core: 0.16.1

release: @pod-os/elements:0.25.0, @pod-os/core:0.16.0

release: @pod-os/elements:0.25.0, @pod-os/core:0.16.0

release: @pod-os/elements:0.21.0, @pod-os/core:0.13.0

release: @pod-os/elements:0.17.0, @pod-os/core:0.12.0

release: @pod-os/elements:0.17.0, @pod-os/core:0.12.0